Valve Corporation develops and publishes video games while operating Steam, the world's largest digital distribution platform for PC gaming. Founded in 1996 and headquartered in Bellevue, Washington, the company has established itself as a dominant force in the gaming industry through iconic franchises like Half-Life, Portal, and Counter-Strike. Steam commands an estimated 75% market share of PC game distribution, generating billions in annual revenue through its 30% commission structure. As a private company, Valve maintains significant independence while continuing to innovate in gaming hardware, virtual reality technologies, and expanding Steam's ecosystem to capture emerging gaming markets and platforms.